Resume Recriminations

So I have this horrible fear that my new resume is misrepresenting me. I recently did a very fast (and apparently not very well-edited) revision to update and properly showcase my skills.

I read it over tonight while prepping for interview questions when I realized I made a mistake that I will now have to either explain, or correct before I can send it out: it looks like I am in charge of Sales/Marketing for my entire company, rather than just a portion of it. I think this could be a pretty big error, don’t you? I don't know if I should call the person I'm interviewing with, so I don't waste his time, in case, or go and tell him in person, while hoping for the best?

I’ve got guilt pangs keeping me awake now, and indecision gnawing at me. :( Mainly because it's a magnificent job and I very selfishly want to go interview, regardless.

What to do?
Sleep on it. That's the number one priority ... sleep. How else can I think quickly on my lying feet tomorrow? HA! Never fear, there will be NO lying here. I don't want to make them think I'm something I'm not. :)